Comment # 263
on bug 66963
from Kajzer
(In reply to Alex Deucher from comment #251) > (In reply to Kajzer from comment #250) > > With kernels 3.17 and 3.18 I have freezes when playing some games, those > > freezes can happen somewhere between 10 minutes and 1 hour. > > Freeze occur only in games. > > With kernel 3.16 everything is normal and there are no freezes. > > Latest patch (auto->high and radeon.dpm=1) is used in each of those kernels. > > Everything else is exactly the same, just booting with different kernel > > makes a difference. > > Can you bisect? Sorry for delay. In the meantime I tried every revision of kernel and this bug happened in each. Last known good kernel was 3.16.7. Here's how I started bisect : git bisect start -- drivers/gpu/drm/radeon git bisect good v3.16 git bisect bad v3.17 Results : $ git bisect log git bisect start '--' 'drivers/gpu/drm/radeon/' # bad: [bfe01a5ba2490f299e1d2d5508cbbbadd897bbe9] Linux 3.17 git bisect bad bfe01a5ba2490f299e1d2d5508cbbbadd897bbe9 # good: [19583ca584d6f574384e17fe7613dfaeadcdc4a6] Linux 3.16 git bisect good 19583ca584d6f574384e17fe7613dfaeadcdc4a6 # good: [03f62abd112d5150b6ce8957fa85d4f6e85e357f] drm/radeon: split PT setup in more functions git bisect good 03f62abd112d5150b6ce8957fa85d4f6e85e357f # bad: [52da51f0f9ea9d213adfc99223630707b26d1d38] drm/radeon: fix active_cu mask on SI and CIK after re-init (v3) git bisect bad 52da51f0f9ea9d213adfc99223630707b26d1d38 # good: [6e909f74db2aa9c5b5606b81efcbe18f2749b008] drm/radeon: add bapm module parameter git bisect good 6e909f74db2aa9c5b5606b81efcbe18f2749b008 # good: [c8ad8b563c7e724e2fedc3aee5bcbd401668474c] drm/radeon: Remove duplicate include from Makefile git bisect good c8ad8b563c7e724e2fedc3aee5bcbd401668474c # good: [73ef0e0d62de4a8d40d34a6f645faee2f6e1ac33] drm/radeon: fix display handling in radeon_gpu_reset git bisect good 73ef0e0d62de4a8d40d34a6f645faee2f6e1ac33 # good: [cd1c9c1a4b06d3bc264e774ad84c410ce02e124e] drm/radeon: re-enable selective GPUVM flushing git bisect good cd1c9c1a4b06d3bc264e774ad84c410ce02e124e # bad: [6101b3ae94b4f266456308824e9ca4eab1235d1a] drm/radeon: fix active cu count for SI and CIK git bisect bad 6101b3ae94b4f266456308824e9ca4eab1235d1a # first bad commit: [6101b3ae94b4f266456308824e9ca4eab1235d1a] drm/radeon: fix active cu count for SI and CIK # bad: [6101b3ae94b4f266456308824e9ca4eab1235d1a] drm/radeon: fix active cu count for SI and CIK git bisect visualize commit 6101b3ae94b4f266456308824e9ca4eab1235d1a Author: Alex Deucher <alexander.deucher@amd.com> Date: Tue Aug 19 11:54:15 2014 -0400 drm/radeon: fix active cu count for SI and CIK This fixes the CU count reported to userspace for OpenCL. bug: https://bugzilla.kernel.org/show_bug.cgi?id=82581 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Cc: stable@vger.kernel.org
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